Classification of Photosystem II inhibitors by thermodynamic characterization of the thermoluminescence of inhibitor-treated chloroplasts

I. Vass, Sandor Demeter

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Computer-assisted curve resolution was used to analyse the thermoluminescence of chloroplasts treated by different inhibitors in order to determine the free energy of activation, ΔF, activation energy, ΔE, and activation entropy, ΔS, of the radiative charge-recombination reaction. It was found that the activation energies and entropies related to the different inhibitor treatments of chloroplasts exhibit a compensation relationship. On the basis of the values of the activation parameters ΔE and ΔS, the Photosystem II inhibitors, which block electron transport between the primary acceptor Q and plastoquinone, could be classified into two main groups.

Original languageEnglish
Pages (from-to)496-499
Number of pages4
JournalBBA - Bioenergetics
Volume682
Issue number3
DOIs
Publication statusPublished - Dec 15 1982

Fingerprint

Thermoluminescence
Photosystem II Protein Complex
Entropy
Chloroplasts
Thermodynamics
Chemical activation
Plastoquinone
Electron Transport
Activation energy
Genetic Recombination
Free energy

Keywords

  • Activation energy
  • Activation entropy
  • Electron transfer
  • Photosynthesis
  • Photosystem II inhibitor
  • Thermoluminescence

ASJC Scopus subject areas

  • Biophysics

Cite this

Classification of Photosystem II inhibitors by thermodynamic characterization of the thermoluminescence of inhibitor-treated chloroplasts. / Vass, I.; Demeter, Sandor.

In: BBA - Bioenergetics, Vol. 682, No. 3, 15.12.1982, p. 496-499.

Research output: Contribution to journalArticle

@article{fb1f1aee66eb4de89fe2843459b6c9e6,
title = "Classification of Photosystem II inhibitors by thermodynamic characterization of the thermoluminescence of inhibitor-treated chloroplasts",
abstract = "Computer-assisted curve resolution was used to analyse the thermoluminescence of chloroplasts treated by different inhibitors in order to determine the free energy of activation, ΔF, activation energy, ΔE, and activation entropy, ΔS, of the radiative charge-recombination reaction. It was found that the activation energies and entropies related to the different inhibitor treatments of chloroplasts exhibit a compensation relationship. On the basis of the values of the activation parameters ΔE and ΔS, the Photosystem II inhibitors, which block electron transport between the primary acceptor Q and plastoquinone, could be classified into two main groups.",
keywords = "Activation energy, Activation entropy, Electron transfer, Photosynthesis, Photosystem II inhibitor, Thermoluminescence",
author = "I. Vass and Sandor Demeter",
year = "1982",
month = "12",
day = "15",
doi = "10.1016/0005-2728(82)90066-4",
language = "English",
volume = "682",
pages = "496--499",
journal = "Biochimica et Biophysica Acta - Bioenergetics",
issn = "0005-2728",
publisher = "Elsevier",
number = "3",

}

TY - JOUR

T1 - Classification of Photosystem II inhibitors by thermodynamic characterization of the thermoluminescence of inhibitor-treated chloroplasts

AU - Vass, I.

AU - Demeter, Sandor

PY - 1982/12/15

Y1 - 1982/12/15

N2 - Computer-assisted curve resolution was used to analyse the thermoluminescence of chloroplasts treated by different inhibitors in order to determine the free energy of activation, ΔF, activation energy, ΔE, and activation entropy, ΔS, of the radiative charge-recombination reaction. It was found that the activation energies and entropies related to the different inhibitor treatments of chloroplasts exhibit a compensation relationship. On the basis of the values of the activation parameters ΔE and ΔS, the Photosystem II inhibitors, which block electron transport between the primary acceptor Q and plastoquinone, could be classified into two main groups.

AB - Computer-assisted curve resolution was used to analyse the thermoluminescence of chloroplasts treated by different inhibitors in order to determine the free energy of activation, ΔF, activation energy, ΔE, and activation entropy, ΔS, of the radiative charge-recombination reaction. It was found that the activation energies and entropies related to the different inhibitor treatments of chloroplasts exhibit a compensation relationship. On the basis of the values of the activation parameters ΔE and ΔS, the Photosystem II inhibitors, which block electron transport between the primary acceptor Q and plastoquinone, could be classified into two main groups.

KW - Activation energy

KW - Activation entropy

KW - Electron transfer

KW - Photosynthesis

KW - Photosystem II inhibitor

KW - Thermoluminescence

UR - http://www.scopus.com/inward/record.url?scp=0001453081&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001453081&partnerID=8YFLogxK

U2 - 10.1016/0005-2728(82)90066-4

DO - 10.1016/0005-2728(82)90066-4

M3 - Article

AN - SCOPUS:0001453081

VL - 682

SP - 496

EP - 499

JO - Biochimica et Biophysica Acta - Bioenergetics

JF - Biochimica et Biophysica Acta - Bioenergetics

SN - 0005-2728

IS - 3

ER -